Yup, £289 at Reyland, no messing around:

Cosworth 2wd With Tremec TKO Clutch Plate


Srung paddle clutch plate with the correct spline for use with Tremec TKO600 gearbox conversions using your original or uprated clutch cover. Ok for upto 375hp with a standard cover or in excess of 550hp when used in conjunction with our uprated cover. 5 or 6 paddle available.

240mm diameter (same as std Cosworth)
Works fine with standard or uprated clutch cover
£289*